Test Wiki: the same dependency can be installed with two different versions in the same time

Test Reporting Application is now at version 2.7 on test.xwiki.org and working, however when installing it Livetable application version 12.10.5 also got installed as a dependency even though 14.10.11 was already installed.

So even though there is no longer the "already installed on namespace" error for Test Reporting Application there are still two different version of Livetable app installed on node 1 (and only the latest version on node 2).

It seems there is no obvious dependency redundancy or anything to suggest a problem in the pom of the Test Reporting Application.